oil pacity on 4.3 mercrusier

V

vicpresnal

Cadet
Joined
Apr 13, 2011
Messages
23
does anyone know the oil capacity of a 4.3 mercruiser. My manual does not show it. when I have the oil at the proper level on the dipstick, and I drain it, I only have 2.75 qts. I know this cannot be right. I have 2 4.3's on my houseboat and they are both about the same. When I put 4 qts in, the level on the stick is 2-3 inches above the full mark.

Also while researching this in my manual, I see where Mercrusier does not reccomend multigrade oil. I have always run 10w30, Would anyone know why mercrusier reccomends straight 30??

thanks
 
P

Pete104

Lieutenant
Joined
Apr 30, 2011
Messages
1,439
Re: oil pacity on 4.3 mercrusier

I just drained a 4.3 empty. Let it drain for well over an hour. 4qts back in w/new filter. Engine level for 24hrs. I just went & checked it. It's right at full mark.
The dipstick tubes don't get within 1 1/2" of the bottom of the pan.
They don't recommend "that weight" of oil, if you can't get 30w/40w, then by all means put it in. 10w is less viscous on cold starts. Use racing oil! 10w30/40 your fine!
 
Bondo

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,525
Re: oil pacity on 4.3 mercrusier

when I have the oil at the proper level on the dipstick, and I drain it, I only have 2.75 qts.
Click to expand...

Ayuh,... How are ya draining,..??

Does the oil look Clean after a run in, after the oil change,..??
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: oil pacity on 4.3 mercrusier

does anyone know the oil capacity of a 4.3 mercruiser. My manual does not show it.
Click to expand...

Kind of depends on what year and model engine you have. Does it have a serial number? cause year doesn't mean much either.

You also keep saying "My Manual says" what exactly is your manual? OEM and if so, is it the right one, or is it one of those sorry aftermarket knee pads?

Everyone wants exact answers to lots of vague information.
 
V

vicpresnal

Cadet
Joined
Apr 13, 2011
Messages
23
Re: oil pacity on 4.3 mercrusier

orginally I was pumping it out, after the amount concern, I pulled plug to allow complete draining of the pan, still I was only getting 2.75- 3 qts. I want to be sure I am correct on the amount because I dont want to overfill . Oil looked normal
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: oil pacity on 4.3 mercrusier

vicpresnal said:
Mercruiser # OL075011, OEM manual
Click to expand...

Hmmmmm, your manual must be missing page 1B-6 here it is.

Then go to 3A-55 for the drawings for your dip stick and see if the measurements are correct, along with the stops being in place.

attachment.php
 

Attachments

  • specs.jpg
    specs.jpg
    90.6 KB · Views: 9
V

vicpresnal

Cadet
Joined
Apr 13, 2011
Messages
23
Re: oil pacity on 4.3 mercrusier

I do not see this in my manual, I must have a different book. So, I need to put in 4 qts and remark my stick?
 
H

HT32BSX115

Supreme Mariner
Joined
Dec 8, 2005
Messages
10,083
Re: oil pacity on 4.3 mercrusier

vicpresnal said:
I do not see this in my manual, I must have a different book. So, I need to put in 4 qts and remark my stick?
Click to expand...
No.

Put in 4 qt's (or so) and USE your "stick" to determine if you're "there".
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: oil pacity on 4.3 mercrusier

vicpresnal said:
I do not see this in my manual, I must have a different book. So, I need to put in 4 qts and remark my stick?
Click to expand...

What is the manual PN number you have? Or even the manual number you should have manual #25
 
You must log in or register to reply here.
Top